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Finding the Fourth Proportional to 526,601.60, 725,922.24 and 383,134.40

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Solution

The fourth proportional to 526,601.60, 725,922.24 and 383,134.40 is: 528,152.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,601.60 : 725,922.24 = 383,134.40 : x
  2. Step 2: Convert to fraction form
    526,601.60/725,922.24 = 383,134.40/x
  3. Step 3: Cross multiply
    526,601.60x = 725,922.24 × 383,134.40
  4. Step 4: Simplify right side
    526,601.60x = 278,125,781,869.06
  5. Step 5: Solve for x
    x = 278,125,781,869.06/526,601.60
  6. Step 6: Final answer
    x = 528,152.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.